<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>伪类not</title>
		<style>
			p:not(#d5){
				font-size: 54px;
				font-style: oblique;
				color:red;
			}
		</style>
	</head>
	<body>
		<p>111</p>
		<p>222</p>
		<p id="d5">333</p>
		<p>555</p>
	</body>
</html>